Automatic query expansion has long been studied in information retrieval research as a technique that deals with the fundamental issue of word mismatch between query and document. The purpose of this thesis is to compare the retrieval effectiveness of different strategies for automatic query expansion. The strategies are based on local analysis of the corpus and use statistical information from the local document set to extract terms that suppose to adapt themselves to each individual search and therefore appear to be searchonyms to the index terms. The strategies compared are: association clusters, metric cluster and scalar cluster. Baseline queries of 24 topics are expanded using terms from the different clusters and searches are made.

This thesis presents the theory behind prototyping and user interviews as parts of requirements analysis. It further discusses how these were used in the development of a budget planning application. The implemented Web-based solution uses a new component-based design rooted in a Model-View-Controller architecture. The application is used today with complete success at the Department of Computer and Information Science at Linköping University..

Human rights have been added to the new curriculum which came into force the 1st of July 2011 in the Swedish Upper Secondary school. The purpose with this master thesis is to compare the old and the new curriculum as part of an examination of what way they affect the Social Science education. Further the analysis focus on what is affecting discourses in the Social Science about human rights, as well as its communication and incorporation in its education. The empirical material consists of the schools steering documents and interviews with Social Science teachers. The theoretical framework is based on human rights education (HRE) and curriculum theory.

The purpose of this study is to survey how the Sweden Democrats? success in the latest election to the Swedish parliament has changed teaching in social science. The main question is: in what way has the success of the Sweden Democrats influenced social science teaching? This leads to following sub-questions: 1) how do the social science teachers define the Sweden Democrats, 2) how do teachers relate to the Sweden Democrats in the classroom, 3) has there been a change in students? political opinions and 4) were there any discussions or proposals from the school administration which followed the parliamentary election of 2010? To answer these questions, interviews were made with four teachers. The main conclusion of this study is that the Sweden Democrats? success led to a simplification of teaching because phenomena and opinions that were previously taboo nowadays are normalized and thus have its place in the classroom.

Långvarig smärta är idag vanligt förekommande bland individer i samhället. Eftersom de ofta blir skickade mellan olika vårdenheter, känner de sig uppgivna. Ett professionellt bemötande av sjuksköterskan är därför väsentligt. Syftet med studien var att belysa hur patienter med långvarig smärta upplever sjuksköterskans bemötande. Metoden som använts var litteraturstudie.

This master thesis deals with the differences in the design of the environmental scanning between different kinds of organisations, as well as the demands and regulations etc. in the respective environments that influence the environmental scanning. The content of the environmental scanning and the organisation of the function are outside the scope of this study. Two organisations that do not have an organised function but are scanning their environment were chosen for the investigation. A model for conducting the environmental scanning developed by Frankelius is used to analyse the practice of environmental scanning.

Bakgrund och problem: Att ha kunskap om vilka kunder som är lönsamma och vilka som inte är det kan vara till stor nytta för ett företags totala lönsamhet. För att få denna information om sina kunder kan man genomföra en kundlönsamhetsanalys.Det finns mycket studier kring att undersöka vilka kunder som är lönsamma och vilka som inte är det men få har studerat själva implementeringsprocessen av en kundlönsamhetsanalys. E-handelsföretag har fått en större andel av den totala handeln och fortsätter växa samtidigt som dessa företag har goda förutsättningar att implementera en kundlönsamhetsanalys då de kan samla information om deras kunder i och med att inköpen sker via internet. Mot denna bakgrund väljs att i denna studie analysera implementeringsprocessen av en kundlönsamhetsanalys i ett e-handelsföretag för att se vilka praktiska problem man kan stöta på. Detta kommer göras genom en fallstudie på e-handelsföretaget Ellos AB.Syfte: Syftet med vår studie är att skapa ökad förståelse för implementeringsprocessen av en kundlönsamhetsanalys i ett e-handelsföretag för att ge ökad kunskap om detta.

The aim of this thesis is to, from a feminist point of view, analyse the Universal Decimal Classification UDC, which is an international and widely used classification system. A number of the larger classification systems and subject heading lists have during the last decades been placed in the limelight of various gender studies and the systems treatment of women has been criticized. With this examination of the UDC, I dont merely wish to identify shortcomings and advantages with the UDCs way to treat men and women. The UDC is also used as an example of how the gender problem can be identified and interpretated in classification systems generally. My analysis is performed with a theoretical foundation in feminist science theories about knowledge and norms, together with a linguistic perspective on valuing and emotionally tinged language.

This thesis examines the retrieval effectiveness of two Web search engines. The two search engines are chosen to represent two different types Google as a broad general search engine and Dogpile as a broad general metasearcher. Twenty queries have been used and the first twenty hits for each query were evaluated for relevance. The queries were invented by the authors, based upon their interests and information needs. They were expressed in a general manner, by using one or several keywords, in accordance with the simple search mode available for each search engine.

During Sweden's economic crisis in the early 1990s a governmental committe of prominent economic and political experts were gathered to produce an analysis of and suggestions to the solution of that crisis. The committe produced a report that became widely commented in the media and in parliment. The report anc the reception of it gives us insights in how the boundaries between social science and politics are created an how new fields of expertise is added to a science. This thesis uses a constructivist approach to explore how the techniques of the economic science were made into credible means of knowöedge production outside of the field where it traditionally holds epistemological authority. Working from the assumption that language does things to the objects that it describes I claim that the episode investigated in this thesis was shaped by the committee's ability to define the economic crissi and thus making it into a knowable object.

<p>This explorative study examines approximately one hundred electronic library homepages. It focuses on four aspects: form, content, structure and user support. Form relates to the presentation of information and is concerned with the relationship between text and graphics. Content refers to the type of information and services that an electronic library offers. Structure is concerned with the guiding principles that have motivated the grouping of information and services on the homepages.

This study highlights the importance of computer technology and its impact on elder care staff's skills development in the public sector. The government presents the digital agenda within which information and communication technology today is considered to have a potential for sustainability, growth and development. According to the EU Commission, there are several important elements that should be improved to digitize the workplace. Among these are digital literacy, collaboration between agencies and increased investments in research, education and innovation. New technology can be understood in different ways by individuals, some see the computer as something positive and exciting, while others may find it hard to see the opportunities for learning and development.

Driveability analysis of terrain data offers an important technique for decision support for all kinds of movements in the terrain. The work described in this report uses a high resolution digital terrain model generated from the laser radar data and further processed by the Category Viewer program, and information from the Real Estate Map. Properties of features found in a filtering process are calculated and compared with a set of rules in a knowledge base to get a driveability cost. This cost is then visualized in a graphical user interface. An evaluation of what driveability is and what it is affected by is performed, and a general cost function is developed, which can be used even if not all relevant information is available.

Denna rapport behandlar en fältstudie genomförd på en kommunal teknisk förvaltning samt en analys av studiematerialet. En tekniklösning på konceptuell nivå arbetas fram. Metoder och synsätt för fältstudien beskrivs samt relationer till forskningsområden som CSCW och CSCL. Problembilden som kommer fram rör en åldrande personalkår där kunskap och erfarenhet önskas ta till vara. Kompetensutveckling och informationsspridning ligger högt på önskelistan hos personalen.

The aim of this master thesis is to explore what role libraries play in the educational process for university students suffering from dyslexia. The question at issue is whether the library is able to meet the needs of students who have difficulty in using the libraries main resource, i.e. printed documents and information in written form. An often expressed view indicates that the modern library creates a lot of obstacles for dyslectic students. The method used is a literature study followed by an empirical study in which interviews were conducted with four students suffering from dyslexia and studying at two different universities and using different libraries.